2024 Tus sau: Elizabeth Oswald | [email protected]. Kawg hloov kho: 2024-01-13 00:07
Thawj qhov ua tiav genome ntawm Neanderthal - tshwj xeeb, mitochondrial DNA pom nyob rau hauv 38, 000-xyoo-old pob txha - tau ua ntu zus. Cov kab ke muaj tseeb muaj cov lus qhia tias peb cov txheeb ze nyob hauv cov neeg me, nyob ib leeg, thiab tej zaum tsis cuam tshuam nrog lawv cov neeg nyob ze.
Ntau npaum li cas ntawm Neanderthal genome tau ua tiav?
Bethesda, Md., Thu., Tsib Hlis 6, 2010 - Cov kws tshawb fawb tau tsim thawj tag nrho cov kab ke ntawm 3 billion tsab ntawv nyob rau hauv Neanderthal genome, thiab qhov kev tshuaj ntsuam thawj zaug qhia tias mus txog 2 feem pua ntawm DNA nyob rau hauv lub genome ntawm cov tib neeg niaj hnub no sab nraum Africa los ntawm Neanderthals los yog nyob rau hauv Neanderthals '…
Peb puas muaj Neanderthal genome tiav?
Thaum Lub Ob Hlis 2009, Max Planck lub koom haum pab pawg coj los ntawm Svante Pääbo tau tshaj tawm tias lawv tau ua tiav thawj daim qauv ntawm Neanderthal genome. Kev tshuaj xyuas thaum ntxov ntawm cov ntaub ntawv qhia nyob rau hauv "lub genome ntawm Neanderthals, ib tug tib neeg hom tsav mus rau extinction" "tsis muaj ib qho tseem ceeb ntawm Neanderthal noob nyob rau hauv niaj hnub tib neeg ".
Cov tib neeg twg muaj cov noob Neanderthal ntau tshaj?
Neeg Esxias sab hnub tuaj zoo li muaj Neanderthal DNA feem ntau hauv lawv cov genomes, ua raws li cov neeg European caj ces. Cov neeg African, xav ntev tias tsis muaj Neanderthal DNA, tsis ntev los no tau pom tias muaj cov noob los ntawm hominins suav nrog 0.3 feem pua ntawm lawv cov genome.
Ua tib neeg niaj hnubPuas muaj Neanderthal DNA?
Neanderthals tau pab kwv yees li 1-4% ntawm cov genomes ntawm cov neeg tsis yog neeg African niaj hnub no, txawm hais tias tib neeg niaj hnub uas nyob txog 40,000 xyoo dhau los tau pom tias muaj nruab nrab ntawm 6-9% Neanderthal DNA (Fu et al 2015).
Pom zoo:
Puas ua tsis tiav txhais tau tias ua tsis tiav?
ua tsis tiav ntawm qhov ua tau zoo lossis ua tiav: Nws ua tsis tiav nws txoj haujlwm. (ntawm qee qhov kev xav tau lossis ib txwm muaj peev txheej) ua pov thawj tias tsis siv lossis pab: Nws cov phooj ywg ua tsis tau nws. Cov lus ua tsis tau nws.
Qhov twg yog qhov tsis tiav lossis tsis tiav?
Tus raug tus lej tsis tiav. Cov lus qhia "tsis tiav" tsis muaj nyob. Yog hais tias koj xav qhia tias ib tug neeg coj ib yam dab tsi uas tau ua tiav thiab ua tsis tiav, koj yuav tsum tau hais tias: Nws tshem lub cog log ntawm lub cav, rendering nws tsis tiav.
Puas yog genome mapping tiag?
Genome mapping yog siv los txheeb xyuas thiab sau qhov chaw ntawm cov noob thiab qhov kev ncua deb ntawm cov noob ntawm chromosome. Genome mapping muab qhov pib tseem ceeb rau Human Genome Project. Puas yog genome mapping nqi? Nws qhia tau hais tias tus nqi los ua kom cov genome diverging drastic nyob ib ncig ntawm 2008, poob los ntawm yuav luag $ 10 lab mus ze rau $ 1,000 hnub no.
Puas yog tib neeg genome yog thawj genome los ua ke?
Chromosome 22 yog thawj tus tib neeg chromosome tau ua raws li ib feem ntawm Human Genome Project. Ensembl genome browser launched. thawj genome sequenced yog dab tsi? Bacteriophage fX174, yog thawj lub genome uas tau ua tiav, tus kab mob kis tau tsuas yog 5, 368 lub hauv paus khub (bp).
Puas yog cov qhab nia kawm tiav tiav?
Hais lus, qhabnias tsev kawm qib siab tsis tas sijhawm. Txawm li cas los xij, ntau yam-xws li hnub nyoog ntawm cov qhab nia-yuav cuam tshuam seb lawv puas tsim nyog tau txais kev hloov mus rau hauv ib qho kev kawm tshwj xeeb. Nws yog ib qho tseem ceeb uas yuav tsum nco ntsoov tias txhua lub tsev kawm ntawv muaj nws txoj cai hloov pauv nyiaj qiv nyiaj.
